Brewer s mashing machine



(No Model.)

3 Sheets-Sheet 1 O. KAESTNER.

BREWERS MASHING MACHINE.

No. 398,621. Patented Feb.26, 1889.

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3 Sheets-Sheet 2.

(No Model.)

0. KAESTNER.

BREWERS MASHING MACHINE.

No. 398,621. Patented Feb. 26, 1889.

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' Ira/anion WWW (No Model.) 3 Sheets-Sheet 3. C. KAESTNER.

BREWERS MASHING MACHINE. No. 398,621. Patented Feb. 26, 1889.

I y n: I F El 20 x i h N, PEYERS Pmwunw nm. Gammon. o. c.

the revolving n1 iXer-shatt.

UITED STATES PATENT OFFICE.

(HARLES KAEH XICII, OF CHICAGO, ILLINOIS.

BREWERS IVIASHING IVIACHINE.

SPECTFICATION forming part of Letters Patent No. 898,621, dated February26, 1889.

Application filed August 20, 1888.

To all whom it may concern:

Be it known that 1, CHARLES KAESTNER, of Chicago, Illinois, haveinvented certain new and. useful Improvements in BrewersMashing-Machines, of which the following is a specification.

My invention relates to certain improvements in a mashing-machinedescribed in Letters Patent issued to me August 20, 1878, No. 207,283;and it has for its object the provision of such mashing-machines withmeans for adjusting the revolving mixer-shaft so as to raise the mixersfrom contact with the mash, and also the provision of means whereby tosimilarly adjust the shaft which carries the shovels.

My present invention is an improvement upon appliances for lifting themixer-shaft described in an application for Letters Patent filed by meApril '7, 1888, Serial No. 269,960.}, and in an application for LettersPatent filed July 21-, 1888, Serial No. 280,9,l-lt, i

I have described means for rocking the mixer-shaft and shovel-shaft intheir bearings, so as to hold the mixers and shovels out of contact withthe mash. In each of said several instances the mixer-arms and theshovel'arms are secured rigidly upon their re spective shafts, and thecentral driving-shaft is non-adjustable vertically and carrieslongitudinal arms rigidly secured thereon, from which the outer ends ofthe shovel and mixer shafts are supported.

In the accompanyi n drawings, Figure l is a side elevation of theoperative pints of a mashing-machine embodying my improvements, themash'tub bcin shown in vertical section. In said figure the rakes andshovels are shown in full lines in their operative position, while theirelevated position is indicated by the dotted lines. Fig. 2 is a planview of the operative parts of the machine, partly in crosssection, onthe line (I h of Fig. 1. Fig. 3 is a cross-sectional view of thedriving-shafts on the line 0 (I of Fig. i. Fig. i is an end elevationlooking in the longitudinal direction of Fig. 5 is a crosssection on theline e f of Fig. i

In said drawings, 1 represents the wall of the mash-tub; 2,the bottomthereof; 3, a dis- Serial No. 283,167. (No model.)

chargeopening in said bottom, and -lpipes for drawing oil. the wort.

5 is a vertical power-shaft located axially of the mash-tub and steppedinto a fixed stud, 6, secured to the bottom of the mash-tub.

7 is an arm projected at right angles from the shaft 5, and having adepending hanger, 8, to support the outer end of the mixer-shaft.

9 is a mixer-shaft which has sliding journal-boxes, one of which, 10, isflanged to embrace and move upon the hanger 8, as shown in Fig.4. Theother jonrnal-box,11,is movable upon a central shaft carried parallel tothe power-shaft 5, and has two bearingsone for the inner end of themixer-shaft and the other for the innei end of the shovel-shaft. Each ofthe boxes ll) ll has a fixed nut, one of which is represented in 121.2,to engage the lifting-shafts. One of these shafts (designated by 13) is mounted at its upper end in a suitable box, 14, and is carriedparallel to the central driving-shaft, 5. Its lower end is exteriorlythreaded and turns in. the nut of the bearing ll. Said shaft carriesbevel-gear 15, which communicates motion through a bevel-gear, 1G, to ashaft, 17, carried in suitable boxes parallel to the arm 7. Shaft 17 isadapted by means of bevelgears 19 19 to impart motion to a secondvertical shaft, 30, carried alongside the arm 8. Shaft 20 has a threadedconnection with the nut of the bearing l0. Shafts 13 and 20 have theirexteriors threaded a suiiicien t distance to provide for the necessaryadjustment of the mixer and shovel shafts. From this construction it isapparent that the turning of the threaded shafts l3 and 20 will causethe lifting of the mixer-shaft by means of their threaded connectionwith the nuts I 2, secured in the boxes 10 ll. Motion will be impartedto these threaded shafts 33 and 20 from afixed gear, Ql, secured at thetop of the mash-tub upon a ll ange, 21, the lai-torbeing bolted to themash-tub cover. This fixed gearflhasa central opening, through which theshaft 5 passes. A short vertical shaft, 22, is mounted parallel to theshaft 5, and carries upon its upper end a E spur-gear, 23,which mesheswith the fixed gear 21 and. receives motion therefrom, and near its llower end it carries a second spur-gear, 23.

Said shaft has a bearing at its lower end upon a swinging plate, 2-1,which latter is pivoted near its middle on a bolt, 25. Said plate has adownwardly-curved arm, 26, to which is connected a shift-rod, 27, which,for convenience, may be extended longitudinally to the outside of themash-tub, where it is provided with a handle, 28, whereby to manipulateit. The plate 24 carries a short shaft, 29, which has a spurgear, 30,set thereon. The gearwh'eels 23 and 30 are set equidistant from thepivotal centerof the plate and are adapted by the swinging of said plateupon its pivotal axis to be brought into mesh with a loose pinion, 31,which is slipped upon the central power-shaft, 5, and meshes with aspur-gear, 31, set on operating-shaft 13.

The swinging of the plate 2a. is effected by an endwise movement of therod 27, and the shaft 22 will be so secured in its upper bearing as topermit the slight deflection necessary to bring the gear on its lowerend into mesh with the loose pinion on the shaft.

Supposing that it be desired to elevate the mixer-shaft from theposition shown by the full lines, Fig. l, to the position shown by thedotted lines of said figure, the plate 24c will be swung so as to throwthe gear-wheel 23 into mesh with the loose pinion on the shaft, and thenthe shafts 13 and 20 will be turned in the proper direction to lift themixer-shaft through the intervention of their threaded connections withthe movable journal-boxes of said shaft.

It will be understood that the mechanism for lifting'the mixer-shaftwill be duplicated for the purpose of raising the shovel-shaft.

Ihave applied to the hanger upon which the outer end of the shovel-shaftis journaled a rod, 32, having adjustable stops or collars 33- thereonand connected to an arm of the handle 28, whereby to automatically shiftrod 27. The steps are so placed as to be engaged by the slidingjournal-box at the upper and lower limits of its travel, and thus tothrow the lifting device out of gear atthe proper time.

WVhen it is desired to lower the shafts, the plate 24 will be swung soas to throw gearwheel 30 into mesh with the loose pinion on shaft 5, andthe threaded operating-shafts will be turned in the opposite direction,causing the movable bearings to travel downward, and thus forcin themixers and rakes gradually into the mash. This feature of the gradualinsertion of the mixers and shovels constitutes an important feature ofmy present improvements; but there are other advantages in theconstruction herein explained-as, for expample, in the rigid connectionsof the parts, whereby danger of breaking is avoided and certainty ofaetio is secured.

It is apparent that the nuts 12 may be made integral with thejournal-boxes, or, in other words, that said boxes may have a threadedaperture to receive the threaded ends of the operating-shafts, and alsothat other gearing-connections may be employed. In order to allow theinner shovel to clear the driving-gear on the step 6, said shovel mustbe set at some distance from the step 6, and in order to operate uponthe mash near the axial center of the machine I employ a supplementaryshovel, 34, (shown in Fig. 1,) the arm of said shovel, 35, beingconnected by means of a bracket or collar, 36, with the shaft 5, so asto turn therewith. This shovel is so set as to throw or propel the mashout from the center, and thus assists not only in the mashing operation,but likewise in discharging the mash from the tub, and prevents the mashfrom piling up or clogging at the center of the mash-tub.

I claim- 1. In a mashing-machine, in combination with a non-adjustablecentral driving-shaft, a rigid arm extended longitudinally therefrom,vertical guides, one toward each end of said arm, a shaft carryingmash-working devices and having bearings movable along said verticalguides, operating-shafts having a threaded connection at one end withthe movable bearings, and suitable gearing whereby to rotate theoperating-shafts, substantially as described.

2. In a mashing-machine, the coi'nbination, with alongitudinal shaftcarrying mash-working devices, of movable bearings for said shaft haiing threaded nuts, vertical operating shafts, one for each bearing, saidshafts adapted to turn in said nuts, whereby to move the bearings, andsuitable gearing to rotate the operating shafts, substantially as.described.

33. In a mashing-machine, the combination,

with the mixer-shaftand shovel-shaft having movable bearings providedwith threaded nuts, of vertical operating shafts threaded at one oftheir ends to adapt them to the threads of the bearings and suitablegearing whereby to rotate said operating-shafts and therebysimultaneously adjust the mixer-shaft and the shovel-shaft,substantially as described.

4. In a mashing-machine, the combination, with the mixer-shaft andshovel-shaft having movable bearings provided with threaded nuts, ofvertical operating-shafts threaded toward one of their ends to adaptthem to the threaded nuts of the bearings and a shifting rod havingstops adapted to engage the movable bearing of one of the shafts,whereby to throw the operating-shafts out of gear, subs'tantially asdescribed.

CHARLES KAESTNER; Vitnesses:

FREDERICK O. Goonwm, K. S. CLARK.

